Latch.



G. REHE.

men. APPLICATION FILED NOV. 22. 1917- 0Q 1 9 1 Qu 0 6 D d .W n 6 t a Pfi -y A m .H. #7 3 GUST/7V I REY/- O I 6 continuing up to the rear endwall 7, to

LATCH.

To all whom it may concern:

Be it known that I, GUsTAv REHE, a .citizen of the United States,residing at Chicago, county of Cook, and State of Illinois, haveinvented certain new and useful Improvements in Latches, of which thefollow ing is a specification. V

This invention relates to improvements in latches, particularlyautomatic night latches.

An object of this invention is to provide a latching device that willpermit a door being partially opened and at the same time make itimpossible for the said door to be opened wide from the outside.

Another object of the invention is to provide a latch of such a naturethat it can be set to automatically spring into latching cooperationwith the door as the door closes.

Another object of the invention is to provide a latch that can be set tolock and hold the door in a closed-tight position.

Another object of the invention is to provide a latch with a means forholding the hasp out of service and preventing the latch fromfunctioning.

With these and other objects in view, an embodiment of the invention isillustrated in the accompanying drawings and described in the followingspecification, the novel features of the invention being moreparticularly pointed out in the appended claims.

Figure 1 1s a front view of a latch shown as it would appear with itsproper elements mounted on the door casing and closed door.

Fig; 2 is a top view of the latch shown. in Fig. 1. I

Fig. 3 is a sectional view, showing the door elements of the latch insection and a fragment of the hasp infull, also a'fragmental section ofthe door and easing I Fig. "4: is a bottom plan view of the door cas ngelement removed.

Referring to the drawings, particularly Fig.1, the casing 5 is formed bytwo Vertical side walls 6 and a rear end wall 7 con-' nected by a topwall 8. The front and bottom of said casing areopen and a slot 9 is outalong the bottom edge of both side walls provide shoulder 10, on whichto rest a closing plate.

End wall 7 is swelled to form a boss 12 which is' provided with avertical bore 13 terminating in an enlarged counterharem.

Specification of Letters Patent.

shown with thecover plate Patented- Dec. a, 1918.

Application filed November 22,1917. ,SeriaI No. 203,373.

Laterally disposed ears 15 are formed by bending a portion of the sidewalls 6 outw'ardly at right angles thereto and apertures 16 are providedin said ears to receive fastening members, such as screws or nails tosecure the casing in place on a door casing or wherever it is desired toutilize the invention.

A thumb screw has a neck 17 formed on the upper portion of its stem 18by providing a flat annular flange 19 integral with and near the upperend of'said stem. The lower surface of said flange has small lugs 20 sodisposed as to register with slots 21 located about 90 apart on the topsurface of the top wall 8 of casing 5. The stem of the thumb screwextends downwardly through the bore 13 and projects slightly into thecounter-bore H. A compression spring 22 of slightly smaller diameter,than the counter-bore is inserted in said counter-bore and a washer 23also'of slightly smaller diameter than the said counter-bore is'se curedto the bottom of the stem 18 by means of a screw 24.

The degree of compression on the. s

can be regulated by the adjustment of screw 24:. j A flat rectangularplate has the front end cut out for a manner as to leave cent its sideedges. plate is out out in and this cut out portion terminates inanarrow slot 27 extending forwardly on the. longitudinal center line of[the rectangular plate, to provide an opening for a compressioncoilspring 28, which is inserted over a pin 29, extending forwardly inalinement with said slot, from the side wall of the boss 12. On thelongitudinal center, line in alinement with the slot 27 just described,a little toward the front end of plate 25 another rectangular slot 30 iscut and it enlarges into a circular shaped slot as it approaches thefront end of the plate 25, and is so located that a boss 31 extendingdownwardly from the top wall of the casing will project into saidcircular part of the slot 27.

A yielding member 32 formed of a flat piece of'metal has ears 33projecting from its end edge so spaced as to-fit between the projections26 of plate 25. A pintle 34 ex tends through apertures which have beenprovided in projections 26 and cars 35. A

the

torsion spring 36 is coiled about pintle 34 prlng 7 6 of the casing thatthey permit of an easy sliding movement of the rectangular plate 25. Therear end of closing plate 37 is cut out in .a semi-circular shape tofitaround the boss I12 and an aperture'38 counter-sunk on one sideisprovided 'n said closing plate, through whicha countersunk screw 39 isinserted and has threaded engagement with a tapped holein the bottom ,ofthe boss 31. The closing plate. projects beyond the front edge of thecasing to provide. a stop to resist the tendency of the torsional spring36 to cause the yielding member 32 to rotate about pintle 34.

Extending upwardly from the front end :of the top wall and flush withthe side walls 6 of easing 5, are cars therein to receive a pivot pin41, which extends therethrough and lation with thehasp. The yoke ofv thehasp is apertured and in pivotal relationship with "the ears 40 and hasanose 42 extending upwardlyfrom a neck 43 which joins the yoke withtheslotted part ofthe hasp. The closing end 44of the slotted part of thehasp projectslaterally beyond both of its sides 2 and forms stops 45.

fingers :48 on its'forward .cient d stance apart jections tions are socurved "one end to, the hasp l wings 50 and A torsional spring 46 is,coiled about pivot pin 41 and secured at and the other end ex tends outparallel withthe top of the casing .5..and provides themeans haspoutwardly into cooperation with the that forces the other elements ofthe invention.

A housing or hasp holding bracket 47 (Figs. 1 and 2) is provided, havingtwo bent end of just sufiito permit the neck 43 of the hasp topassbetween, The side walls of the housing terminate in cam like pro- 49 theouter edges ofsaidprojecas to have sliding engagement with the curvatureof yielding member 32. A portion of the lower side walls and rear wallof the housing. is bent outwardly at right angles thereto to provide 51;said wings are apertured to receive screws orJthe like to serve as ameans of securing said housing in position. A boss 52 on the inner sideof the upper wall of; said housing is. provided with a bore,v a

thumb-screw, spring, washer and fastening meanssimilar or identicallythe same'asthat provided in the casing 5.

I To put my device into practicaluse v door in such a position that thethe hasp fits between the bent fingers 48 and permits of its passing 40having apertures forms a pivotal re first necessary to secure the casing5 to the edge of a door casing by any suitable means; the housing 47 tothe face of the neck 43 of therebetween without interfering with thesaid fingers In the. pesition just described as the door is opened thebent fingers 48 wide without nterference the hasp ,must be rotatedoutwardly aboutits fulcrum for about 180- until the nose 42 passesthrough a slot 53 in the upper wall of easing 5 and until said nosewedges itself far enoughinto another slot 30, in the sliding plate 25 topermit a lip 54 in said sliding plate to be forced by the recoil of thespring 28,'in to locking ,engageme t with said nose. The neck of thehasp being of smaller diameter than the distance between the two bentfingers 48, it canbe rotated out of engagement without interference, andthe nose being integral with the neck of the hasp they will rotatesimultaneously.

With the hasp in the position just .described the door is free to open,but in opening cam projections 49, extending from the slide over thesides of the hasp and the door is permitted front ends of housing justbelow the bent fingers will come into sliding engagement with the edgeof the yielding member 32.

. When the door the projections 49 come into sliding engagement with theyielding member 32 forcing it backwardly against the pressure of thespring 36. This disengages the hook with the lip :54 and thespring- 46secured around is closed the curvature of Y wardly until the nose passesthrough the slot and engages with the lip, 54 in the same manner as justpreviously described, then pull the thumb screw of the casing 5 upwardlyfar enough to disengage thelugs20 from the slots 21 and revolve it 90;the head of said thumb screw. will then bein position ing to operativepositionas the nose. be comes disengaged with the lip .54 as the door;is opened.

If it is, desired touse this devicev as a means for locking the door andkeepingthe or-t g t y clo d the thumb s r w Pr vided in the upper wallof the housing must:

to prevent the hasp from returna hasp support, a hasp be turned 90 andit then engages the hasp and permanently locks the door.

I claim:

1. In a device of the character described, the combination of a haspsupport, a hasp pivotally mounted thereon, a hasp holding bracket on thedoor, and an element for automatically locking the hasp in inoperativeposition when said hasp has been moved manually to said inoperativeposition, said hasp holding bracket being adapted to release saidlocking element automatically When the door is being closed.

2. In a door fasteningdevice, the combination of a hasp support, a hasppivotally mounted thereon, means for automatically locking said hasp ininoperative position, a hasp holding bracket fastened to the door, and amovable member on said locking means adapted to move relatively to thelocking means when said hasp holding bracket is moved in a predetermineddirection and adapted to cause displacement of said locking means intorelease position when said hasp holding bracket is moved in the oppositedirection.

In a door fastener, the combination of a hasp support, ahasp, a lockingplate for automatically holding said hasp in inoperative position, ahasp member controlled by said hasp holding bracketand pivotallyconnected with said locking plate, and means for preventing movement ofsaid member about its pivot in one direction.

4. In a door fastener, the combination of a hasp support, a hasp, aplate for automatically locking said hasp in inoperative 'position, ahasp holding bracket, a member controlled by said hasp holding bracketand pivotally connected with said locking plate, means for preventingmovement of said member about its pivot in one direction, said memberbeing movable in the opposite direction upon engagement With said haspholding bracket, and means for returning said pivotal member to theoriginal position relatively to said locking plate.

5. In a door fastener, the combination of pivotally mounted thereon, alocking plate slidably carried by said support, a spring'acting againstsaid locking plate at one end thereof, a yielding member pivotallymounted to said locking plate at the other end, a hasp holding bracket,and means on the said bracket for swinging said yielding member aboutits pivotal support when the said bracket is moved in holding bracket, a

one direction and for shifting said yielding member and locking platejointly when said bracket is moved in the opposite direction.

6. In a door fastener, the combination of a hasp support, a hasppivotally mounted thereon, said hasp being provided with a reduced neckportion and a slotted body of a larger Width than the neck portion, atransverse terminal projection extending laterally from'the end of saidslotted body, and a hasp holding bracket mounted on the door havingspaced projecting fingers which when the hasp is in operative positionand the door isclosed are in opposition to the reduced portion of thehasp and which upon opening movement of said door enter into engagementwith the laterally extending portion of the transverse terminalprojection of the hasp.

7 In a door fastener, the combination of a hasp support, a hasppivotally mounted thereon, a locking plate slidably carried by saidsupport, a hasp holding bracket mounted on the door and having fingerswhich are located at opposite longitudinal edges of said hasp when thedoor is in closed position, and projecting horn portions on said holdingbracket for engaging the locking plate on the hasp support when the dooris open.

i 8. In a door fastener, the combination of a hasp support, a hasppivotally mounted thereon, means for automatically locking the hasp ininoperative position and for releasing said hasp from inoperativeposition upon movement of the door with respect to the hasp, means forlocking said hasp in operative position, and means independent of saidautomatically locking means for holding said hasp locked in inoperativeposition.

9. In a door fastening device, the combination of a hasp support, a hasppivotally mounted thereon, means carried by said hasp support forautomatically locking the hasp in inoperative position when the hasp hasbeen manually moved to said position, means for automatically releasingsaid automatic locking means upon closure of the door, and means forautomatically throwing the hasp to operative position upon the automaticrelease of said first-named locking means.

In testimony whereof I aiiix my signature in the presence of twoWitnesses.

GUSTAV REHE. Witnesses EVELYN GREGORY, DANIEL A. BRENNAN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, I). 0.

